MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2cba66d97b8af051072417ad7267c9f56f8f74eca98a5e5bf5d7ddc894249ad8. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

AgentTesla

Vendor detections: 15

Intelligence 15 IOCs YARA 17 File information Comments

SHA256 hash:	2cba66d97b8af051072417ad7267c9f56f8f74eca98a5e5bf5d7ddc894249ad8
SHA3-384 hash:	e03d2a645c64cae0b6ac04dfcde5a7b00de01b276a14fabcedd5713d81c45b0c5ea8dfe822dce56767a40ecf588d407e
SHA1 hash:	2b11a170e73e552b1899911257e0414b81660e61
MD5 hash:	15f196c8858b2d1475159aec13f4fb32
humanhash:	lima-pizza-hot-sierra
File name:	CAHKHCM2404009CFS.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	872'960 bytes
First seen:	2024-04-22 14:04:40 UTC
Last seen:	2024-04-22 14:34:27 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	24576:25hHMCcDBudIWS+FgLYrD5jxX7jaE1P1q:ahHXG8hS+FICLj8
Threatray	1'050 similar samples on MalwareBazaar
TLSH	T16D05CF85E984A6A4CD18AB716A36CD3482237EFCA874A81D29CD3D673FFF2D35025153
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):
dhash icon	d4c4c4d8ccd4f0cc (241 x AgentTesla, 65 x Loki, 41 x Formbook)
Reporter	cocaman
Tags:	AgentTesla exe Shipping

Intelligence

File Origin

# of uploads :

# of downloads :

427

Origin country :

Vendor Threat Intelligence

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Creating a process with a hidden window

Creating a file in the %AppData% directory

Enabling the 'hidden' option for recently created files

Adding an access-denied ACE

Creating a file in the %temp% directory

Launching a process

Creating a file

Using the Windows Management Instrumentation requests

Creating a file in the %AppData% subdirectories

Reading critical registry keys

DNS request

Connection attempt

Sending a custom TCP request

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Stealing user critical data

Adding an exclusion to Microsoft Defender

Enabling autorun by creating a file

Unauthorized injection to a system process

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

obfuscated packed

Link:

https://www.filescan.io/uploads/66266e93d2fc149e411894fb/reports/53d871a1-1e3f-4212-9171-8b96ce3a381f/overview

Verdict:

Malicious

Labled as:

Ransom.Loki.Generic

Link:

https://www.hybrid-analysis.com/sample/2cba66d97b8af051072417ad7267c9f56f8f74eca98a5e5bf5d7ddc894249ad8

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Malware family:

Agent Tesla

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/38d38665-30df-4b91-8e82-896433498ceb

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1429714

Signature

.NET source code contains potential unpacker

.NET source code contains very large array initializations

Adds a directory exclusion to Windows Defender

Allocates memory in foreign processes

Found malware configuration

Hides that the sample has been downloaded from the Internet (zone.identifier)

Icon mismatch, binary includes an icon from a different legit application in order to fool users

Injects a PE file into a foreign processes

Loading BitLocker PowerShell Module

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet

Sigma detected: Scheduled temp file as task from temp location

Snort IDS alert for network traffic

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal ftp login credentials

Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

Uses schtasks.exe or at.exe to add and modify task schedules

Writes to foreign memory regions

Yara detected AgentTesla

Yara detected AntiVM3

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/2cba66d97b8af051072417ad7267c9f56f8f74eca98a5e5bf5d7ddc894249ad8

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/2cba66d97b8af051072417ad7267c9f56f8f74eca98a5e5bf5d7ddc894249ad8/

Threat name:

Win32.Trojan.AgentTesla

Status:

Malicious

First seen:

2024-04-22 04:16:04 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

23 of 38 (60.53%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=fs5gnwl3rlyfcbzec6wxez6j6vxy65hmvgff4w7v27o4rfbetlma._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

AgentTesla

67251e9318b1791c1a5c112f3dfef053bfab70cfe5c3f3c7e8ea3c0d0d77ecfd

AgentTesla

9e2120abe2f12cca940969f6158c7c452a008c767c411482930a887ee61567d9

AgentTesla

a24660abc3c893c327dfc17d5938d7078c2e0852d767d5f57f7bb143f56b2cc2

AgentTesla

f2346bf320fa56b3774857ea5b9019db993a94c52a8a65c9cb9a556c0c963c20

AgentTesla

+ 1'040 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger persistence spyware stealer trojan

Link:

https://tria.ge/reports/240422-rdtlrscb74/

Behaviour

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of SetThreadContext

Adds Run key to start application

Checks computer location settings

AgentTesla

Unpacked files

SH256 hash:

c07f4995e8edcf73df46b2531eb00816959f130054d3eee616cff54797374d79

MD5 hash:

0c0abc99c15c7f9e015c1b1c8078c1e4

SHA1 hash:

a30c79529ef68cdb5a177289ebb7b4234b32d246

Link:

https://www.unpac.me/results/163237b8-4d91-4e79-8839-47af2768d3e3/

SH256 hash:

3fa0e73845e326b338b8393c4cad1d5c3dde1588b02811ad37621fe744fcae00

MD5 hash:

e1706fa993408403e49ae06447f00c24

SHA1 hash:

901ee3790d15a28ba86d221501e86e5c30c8ac66

Link:

https://www.unpac.me/results/163237b8-4d91-4e79-8839-47af2768d3e3/

SH256 hash:

abdf032878b2df29c596f3b475dc6cc53e8498a49465222af5e41597f8ebab3e

MD5 hash:

7f060658be78de02c6359c6ad55c0913

SHA1 hash:

8a549c8e633b7d2dbf487970892edbc0c76600d8

Detections:

AgentTesla

win_agent_tesla_g2

INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Agenttesla_type2

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

INDICATOR_EXE_Packed_GEN01

INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Link:

https://www.unpac.me/results/163237b8-4d91-4e79-8839-47af2768d3e3/

Parent samples :
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SH256 hash:

bbb6282ca27a00ff021dbf21093c779f826d82e2431205f338b963e6e5cac114

MD5 hash:

cbdb6b422a784b4e696da67e93cf7832

SHA1 hash:

47333627d7f6267469c4a7899c315222cf59ced0

Link:

https://www.unpac.me/results/163237b8-4d91-4e79-8839-47af2768d3e3/

SH256 hash:

2cba66d97b8af051072417ad7267c9f56f8f74eca98a5e5bf5d7ddc894249ad8

MD5 hash:

15f196c8858b2d1475159aec13f4fb32

SHA1 hash:

2b11a170e73e552b1899911257e0414b81660e61

Link:

https://www.unpac.me/results/163237b8-4d91-4e79-8839-47af2768d3e3/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/2cba66d97b8a/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	AgentTeslaV3 Create hunting rule
Author:	ditekshen
Description:	AgentTeslaV3 infostealer payload

Rule name:	AgentTeslaV5 Create hunting rule
Author:	ClaudioWayne
Description:	AgentTeslaV5 infostealer payload

Rule name:	INDICATOR_EXE_Packed_GEN01 Create hunting rule
Author:	ditekSHen
Description:	Detect packed .NET executables. Mostly AgentTeslaV4.

Rule name:	INDICATOR_SUSPICIOUS_Binary_References_Browsers Create hunting rule
Author:	ditekSHen
Description:	Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many email and collaboration clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many file transfer clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing Windows vault credential objects. Observed in infostealers

Rule name:	malware_Agenttesla_type2 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Agenttesla in memory
Reference:	internal research

Rule name:	Multifamily_RAT_Detection Create hunting rule
Author:	Lucas Acha (http://www.lukeacha.com)
Description:	Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	pe_imphash Create hunting rule

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	Windows_Generic_Threat_9f4a80b2 Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Trojan_AgentTesla_ebf431a8 Create hunting rule
Author:	Elastic Security
Reference:	https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

7z 84f662358c11febabf18a3470a2b93e57f6f03f38a482f5e183fa848cf5ab7c2

AgentTesla

exe 2cba66d97b8af051072417ad7267c9f56f8f74eca98a5e5bf5d7ddc894249ad8

(this sample)

Delivery method

Other

Dropped by

SHA256 84f662358c11febabf18a3470a2b93e57f6f03f38a482f5e183fa848cf5ab7c2

Dropped by

MD5 7a93d6e768cba642db4effec088ce0af

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

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